GB1421192A - Preparation of aminomethane-diphosphonic acid - Google Patents
Preparation of aminomethane-diphosphonic acidInfo
- Publication number
- GB1421192A GB1421192A GB387873A GB387873A GB1421192A GB 1421192 A GB1421192 A GB 1421192A GB 387873 A GB387873 A GB 387873A GB 387873 A GB387873 A GB 387873A GB 1421192 A GB1421192 A GB 1421192A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diphosphonic acid
- aminomethane
- acid
- pcl
- jan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- FRCICXIVPRNPLM-UHFFFAOYSA-N [amino(phosphono)methyl]phosphonic acid Chemical compound OP(=O)(O)C(N)P(O)(O)=O FRCICXIVPRNPLM-UHFFFAOYSA-N 0.000 title abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- -1 alkali metal salt Chemical class 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052752 metalloid Inorganic materials 0.000 abstract 1
- 150000002738 metalloids Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3839—Polyphosphonic acids
- C07F9/3873—Polyphosphonic acids containing nitrogen substituent, e.g. N.....H or N-hydrocarbon group which can be substituted by halogen or nitro(so), N.....O, N.....S, N.....C(=X)- (X =O, S), N.....N, N...C(=X)...N (X =O, S)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
1421192 Aminomethane diphosphonic acid BENCKISER-KNAPSACK GmbH 25 Jan 1973 [25 Jan 1972] 3878/73 Heading C2P Aminomethane diphosphonic acid is prepared by reacting HCN with a mixture of PCl 3 and H 3 PO 3 in the presence of a catalyst comprising a halide of a polyvalent metal or metalloid, without heating, and subsequently hydrolysing the resulting product. The acid obtained may be converted to a salt by reaction with an alkali or alkaline earth metal hydroxide or alternatively an alkali metal salt may be obtained directly by replacing HCN by an alkali metal cyanide. The hydrolysis may be effected with water or hydrochloric acid and the catalyst may comprise AlCl 3 , BBr 3 , BF 3 , SbCl 5 or ZnCl 2 . The PCl 3 and H 3 PO 3 are preferably used in a mole ratio of from 1 : 2 to 5 : 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2203366A DE2203366C3 (en) | 1972-01-25 | 1972-01-25 | Process for the preparation of aminomethanediphosphonic acid and its salts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421192A true GB1421192A (en) | 1976-01-14 |
Family
ID=5833951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB387873A Expired GB1421192A (en) | 1972-01-25 | 1973-01-25 | Preparation of aminomethane-diphosphonic acid |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3903142A (en) |
| DE (1) | DE2203366C3 (en) |
| FR (1) | FR2169116B1 (en) |
| GB (1) | GB1421192A (en) |
| IT (1) | IT978466B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3565949A (en) * | 1967-08-15 | 1971-02-23 | Fmc Corp | Diaminoalkanediylidenetetraphosphonic acids useful in cleaning compositions |
-
1972
- 1972-01-25 DE DE2203366A patent/DE2203366C3/en not_active Expired
-
1973
- 1973-01-22 FR FR7302105A patent/FR2169116B1/fr not_active Expired
- 1973-01-24 US US326487A patent/US3903142A/en not_active Expired - Lifetime
- 1973-01-25 GB GB387873A patent/GB1421192A/en not_active Expired
- 1973-01-25 IT IT19603/73A patent/IT978466B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT978466B (en) | 1974-09-20 |
| DE2203366C3 (en) | 1975-04-10 |
| DE2203366B2 (en) | 1974-08-22 |
| FR2169116B1 (en) | 1976-08-27 |
| DE2203366A1 (en) | 1973-08-02 |
| US3903142A (en) | 1975-09-02 |
| FR2169116A1 (en) | 1973-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |